Ohio Revised Code Title XXI. Courts Probate Juvenile § 2109.03

At the time of the appointment of a fiduciary, the fiduciary shall file in the probate court the name of the attorney, if any, who will represent the fiduciary in matters relating to the trust. After the name of an attorney has been filed, notices sent to that fiduciary in the fiduciary's official capacity shall also be sent by the court to that attorney who may sign waiver of service of any or all of the notices upon the attorney. If the fiduciary is absent from the state, the attorney shall be the agent of the fiduciary upon whom summonses, citations, and notices may be served. Any summons, citation, or notice may be served upon the fiduciary by delivering duplicate copies of the summons, citation, or notice to the attorney designated by the fiduciary. No probate judge shall permit any person to practice law in the probate court for compensation, unless the person has been admitted to the practice of law within the state. This section does not prevent any person from representing the person's own interest in any estate, matter, action, or proceeding.